Loading of ventilation components with dust may affect air handling systems performances andcontribute to poor indoor air. A lot of standardised test method for ventilation componentscharacterisation - filters, fans, heat exchangers, extract air terminal devices etc. - exist but allthese methods describe initial performance determination except for filters which are alsocharacterised by dust loading test.The aim of our study was to define a laboratory dust loading test method of extract air terminaldevices and to validate results comparing to on-site results.
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